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authorNikolay Borisov <nborisov@suse.com>2020-09-18 16:34:37 +0300
committerDavid Sterba <dsterba@suse.com>2020-10-07 13:13:24 +0300
commit908930f3edad79f7e5e35b7fac09da8c54ca96b5 (patch)
treeb34d81dbd9b82f9120c9f51a666eb5d2d5ab73e9 /fs/btrfs/inode.c
parentbe17b3afc4a6255008d4bbf7b1b45a36ac54bece (diff)
downloadlinux-908930f3edad79f7e5e35b7fac09da8c54ca96b5.tar.xz
btrfs: stop calling submit_bio_hook for data inodes
Instead export and rename the function to btrfs_submit_data_bio and call it directly in submit_one_bio. This avoids paying the cost for speculative attacks mitigations and improves code readability. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 204cd9d39894..dddff27774a1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2184,9 +2184,8 @@ static blk_status_t btrfs_submit_bio_start(void *private_data, struct bio *bio,
*
* c-3) otherwise: async submit
*/
-static blk_status_t btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
- int mirror_num,
- unsigned long bio_flags)
+blk_status_t btrfs_submit_data_bio(struct inode *inode, struct bio *bio,
+ int mirror_num, unsigned long bio_flags)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
@@ -10258,8 +10257,7 @@ static const struct file_operations btrfs_dir_file_operations = {
};
static const struct extent_io_ops btrfs_extent_io_ops = {
- /* mandatory callbacks */
- .submit_bio_hook = btrfs_submit_bio_hook,
+ .submit_bio_hook = NULL
};
/*